what should be added to -4x^2+3x+1 to get 2x^2-9x+1
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Answer:
6x² - 12x
Step-by-step explanation:
Let the number be A. then,,
==: -4x² + 3x + 1 + A = 2x² - 9x + 1
==: A = 2x² - 9x + 1 + 4x² - 3x - 1
==: A = 6x² - 12x
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